Table II.
Results of intraocular pressure measurements [median, min to max, mean ± standard deviation (SD)] and corresponding P-values in cattle, sheep, and goats using the TonoVet and Tono-Pen AVIA.
| Eye | TonoVet Median (min to max) |
Tono-Pen AVIA Median (min to max) |
TonoVet Mean ± SD |
Tono-Pen AVIA Mean ± SD |
|
|---|---|---|---|---|---|
| Cattle | OD | 23 (15 to 37) | 15.5 (8 to 27) | 23.9 ± 5.0 | 15.5 ± 3.9 |
| 22 (12 to 40) | 16 (9 to 25) | 21.5 ± 6.3 | 15.6 ± 4.3 | ||
| P-value | OS* | < 0.000 | |||
| OD* | < 0.000 | ||||
| Sheep | OS | 11 (8 to 20) | 10 (5 to 18) | 12.7 ± 3.0 | 9.8 ± 2.7 |
| OD | 10.5 (7 to 20) | 10 (6 to 18) | 11.7 ± 3.3 | 10.5 ± 2.4 | |
| P-value | OS* | < 0.000 | |||
| OD* | 0.009 | ||||
| Goats | OS | 22 (9 to 34) | 13 (4 to 25) | 21.6 ± 5.4 | 13.0 ± 4.3 |
| OD | 24 (11 to 37) | 13 (6 to 25) | 24.3 ± 5.6 | 14.1 ± 4.6 | |
| P-value | OS* | < 0.000 | |||
| OD* | < 0.000 |
*
Significant difference (Wilcoxon test, P ≤ 0.05).
OS — oculus sinister; OD — oculus dexter.